plural noun
On·​a·​gra·​ce·​ae | \ˌänəˈgrāsēˌē\

Definition of Onagraceae 

: a large widely distributed family of plants of the order Myrtales having an inferior ovary, 2 or 4 petals, 1 to 8 stamens, and a simple style

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Other Words from Onagraceae

onagraceous \ ¦änə¦grāshəs \ adjective

History and Etymology for Onagraceae

New Latin, from Onagra + -aceae

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